The UFO Mystery by Mary Blount Christian, illustrated by Joe Boddy, 1989.

This book is part of the Sherlock Street Detectives series.

Halloween is approaching, and the Sherlock Street Detectives are talking about their costumes. David is going to be a bear, and he made his costume out of an old rug. Pedro is going to be a clown. Walter and Ann, who are twins, refuse to tell anyone what their costumes are because they want it to be a surprise.

Then, David says that he has to go home because it’s dinnertime, and after dinner, he’s going to look for a comet with his telescope. Pedro says that he’s never used a telescope before and asks if he can look, too. David says he can, and Pedro says that he will come back to his house when it’s dark.

When David and Pedro meet to use the telescope, David shows Pedro how to use a star map to find the constellations. While Pedro is looking through the telescope, he thinks that he sees a UFO! At first, David doesn’t believe him. It’s too early to see the comet, so he thinks maybe Pedro saw a meteor. Pedro insists that it was a UFO, and David points out that UFO stands for Unidentified Flying Object. That means that anything that “unidentified” can be a UFO. Pedro can’t identify exactly what it was he saw, but that only means that he didn’t recognize the object. It doesn’t have to be an alien spacecraft, just some normal thing he didn’t recognize, like a meteor, a comet, or even just a firefly.

Since David’s dad works for NASA, Pedro says that they should ask him if it could have been a comet other than the one they were expecting to see. However, David’s dad confirms that there should only have been one comet that night and that the comet should have been in a different part of the sky. The boys talk about getting Walter and Ann to help them investigate, but then, they see some strange creatures in the bushes!

What did Pedro really see through the telescope, and could those weird creatures really be aliens?

The book is available to borrow and read for free online through Internet Archive.

My Reaction

This is fun mystery picture book! Figuring out what/who the aliens are is the easiest part of the mystery, since this is before Halloween and the twins were being mysterious about what their costumes are, although it might seem harder to young children. The answer to what Pedro thought he saw through the telescope is revealed first, although I wasn’t entirely sure what to think of it myself. At first, I thought that the “aliens” might have been throwing around some glowing toy or something, but they would have to have thrown it really high to get it in front of the telescope because the boys were using the telescope on the roof. There’s a perfectly logical explanation behind the phenomenon, and David figures it out by noting where the object was and it was moving. David’s father confirms David’s guess with a call to NASA.

One of the nice things about this simple mystery story is that it introduces some real concepts for stargazers and amateur astronomers. There is a vocabulary list and glossary in the back of the book.

This series also offers good representations for racial diversity. Racial issues don’t enter into the story. The kids are just a bunch of kids who happen to live in the same neighborhood and are friends and like to solve mysteries, but they are a mixed racial group, and that’s nice to see. David is black, Pedro is Hispanic, and the twins are white. The children’s races are not referred to in the text of the story, but they are shown in the pictures.